CVE-2026-74442
N/A ALL-YEARSIn the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure Two paths through vmw_vkms_init() can leave vmw->crc_workq NULL while still leaving the rest of the driver in a state that calls vmw_vkms_cleanup() at module unload: 1. vmw_host_get_guestinfo(GUESTINFO_VBLANK, ...) failing or returning an oversized buffer -- the common case on hosts without a VBLANK guestinfo entry -- early-returned before the workqueue allocation. 2. alloc_ordered_workqueue() returning NULL on memory pressure. vmw_vkms_cleanup() then calls destroy_workqueue(NULL), which dereferences wq->name and panics. Fix the first case by removing the early return: vmw->vkms_enabled is already false on the rpci-failure path so no work will ever be queued, and allocating the workqueue unconditionally keeps the control flow simple. Fix the second case by guarding the cleanup with a NULL check, since alloc_ordered_workqueue() can still fail under low memory.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 6th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept
No public PoC is currently catalogued.
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References and research data (JSON)
Vendor product assessments
Showing 32 of 274 vendor product statements; 242 omitted. Read the full vendor advisory.
kernel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- none available: Fix deferred
kernel-64k-modules as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules
- none available: Fix deferred
kernel-debug-uki-virt as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-uki-virt
- none available: Fix deferred
kernel-rt-64k-debug-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug-devel
- none available: Fix deferred
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
kernel-uki-virt as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-uki-virt
- none available: Fix deferred
python3-perf as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/python3-perf
- none available: Fix deferred
kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-debug-modules-core
- none available: Fix deferred
kernel-cross-headers as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-cross-headers
- none available: Fix deferred
kernel-devel as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-devel
- none available: Fix deferred
kernel-rt-64k-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-core
- none available: Fix deferred
kernel-rt-64k-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-devel-matched
- none available: Fix deferred
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
kernel-rt-modules-partner as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-modules-partner
- none available: Fix deferred
kernel-zfcpdump-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-devel-matched
- none available: Fix deferred
rv as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/rv
- none available: Fix deferred
kernel as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-doc as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-doc
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00perf as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/perf
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-debug as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-kdump-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-kdump-devel
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-rt-doc as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-doc
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-tools as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-tools
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00bpftool as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/bpftool
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-cross-headers as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-cross-headers
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-debug-modules-internal as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-modules-internal
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-modules-extra as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-modules-extra
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug-devel
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-rt-kvm as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-kvm
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-selftests-internal as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-selftests-internal
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-zfcpdump-devel
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00python3-perf as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/python3-perf
Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74442.json Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59749 EUVD · EUVD-2026-59749
Technical & other
- https://git.kernel.org/stable/c/7c701778c6a369769992614dac8dc00c8ac72afcCVE record · Linux · Updated 2026-08-17T05:19:29.387Z
NVD · CVE-2026-74442 · Updated 2026-08-17T06:19:39.970 - https://git.kernel.org/stable/c/96efee36453b697ccbaf75091b7a1807c11809ddCVE record · Linux · Updated 2026-08-17T05:19:29.387Z
NVD · CVE-2026-74442 · Updated 2026-08-17T06:19:39.970 - https://git.kernel.org/stable/c/0ee0532f1d405d37f38c44cbba87342e63d3bbd4CVE record · Linux · Updated 2026-08-17T05:19:29.387Z
NVD · CVE-2026-74442 · Updated 2026-08-17T06:19:39.970 - https://git.kernel.org/stable/c/05eaa887e7b4f40fba425f8a1d7a5a8a043092a6CVE record · Linux · Updated 2026-08-17T05:19:29.387Z
NVD · CVE-2026-74442 · Updated 2026-08-17T06:19:39.970 - https://access.redhat.com/security/cve/CVE-2026-74442 Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2517074 Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-74442 Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-74442 Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
- https://lore.kernel.org/linux-cve-announce/2026081529-CVE-2026-74442-922b@gregkh/T Red Hat · CVE-2026-74442 · Updated 2026-08-17T15:28:56+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS